package com.ljh.config;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.ljh.pojo.MailLog;
import com.ljh.service.IMailLogService;
import com.ljh.vo.MailConstants;
import com.rabbitmq.client.AMQP;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


@Configuration
public class RabbitMqConfig {

    @Autowired
    private CachingConnectionFactory cachingConnectionFactory;
    @Autowired
    private IMailLogService mailLogService;

    //日志
    private static final Logger LOGGER = LoggerFactory.getLogger(RabbitMqConfig.class);


    @Bean
    public RabbitTemplate rabbitTemplate(){
        RabbitTemplate rabbitTemplate = new RabbitTemplate(cachingConnectionFactory);
        /**
         * 消息确认回调,确认消息是否到达broker
         * correlationData 为消息唯一标识（msgId）
         * ack               回调结果（成功为true）
         * cause           失败原因
         */
        rabbitTemplate.setConfirmCallback((correlationData,ack,cause)->{
            String msgId = correlationData.getId();
            System.out.println("msgId:"+msgId);
            if (ack){
                LOGGER.info("消息发送成功========》{}",msgId);
                mailLogService.update(new UpdateWrapper<MailLog>().set("status",1).eq("msgId",msgId));
            }
            else {
                LOGGER.info("消息发送失败==========>{}",msgId);
            }
        });
        /**
         * 消息失败回调，比如router不到queue时回调
         * msg 消息主题
         * repCode 响应码
         * repText 响应描述
         * exchange 交换机
         * routingkey 路由键
         */
        rabbitTemplate.setReturnCallback((msg,repCode,repText,exchange,routingkey)->{
            LOGGER.info("{}============>消息发送到queue时失败"+msg.getBody());
        });

        return rabbitTemplate;
    }

    @Bean
    public Queue queue(){
        return new Queue(MailConstants.MAIL_QUEUE_NAME);
    }

    @Bean
    public DirectExchange exchange(){
        return new DirectExchange(MailConstants.MAIL_EXCHANGE_NAME);
    }

    @Bean
    public Binding binding(){
        return BindingBuilder.bind(queue()).to(exchange()).with(MailConstants.MAIL_ROUTING_KEY_NAME);
    }
}
